Oh I'm stupid. I didn't count that amount of actions characters did when they brave in the above video. Turns out using 3 bp gives you 4 actions, resulting in 33% more turns rather than just using your turns one by one.
Now I see the dilemma. You wanna go all-in and risk all your your damage be defended? Or you want to have a wait and see approach, but losing the 33% bonus in doing so? Or do you default if you're anticipating an enemy braving?
So roughly, braving < defaulting < using only 1 bp < braving.
EDIT: JP release date is Oct 11.
Collector's edition sounds sweet (literally life-size poster? me want!), but hella expensive at around 150 bucks plus shipping.